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Basic Information
| CAS No.: | 91-57-6 |
|---|---|
| Name: | 2-Methylnaphthalene |
| Molecular Structure: | |
|
|
|
| Formula: | C11H10 |
| Molecular Weight: | 142.2 |
| Synonyms: | NSC 3575;b-Methylnaphthalene; |
| EINECS: | 202-078-3 |
| Density: | 1.016 g/cm3 |
| Melting Point: | 34-36 °C(lit.) |
| Boiling Point: | 239.9 °C at 760 mmHg |
| Flash Point: | 97.8 °C |
| Solubility: | 0.00246 g/100 mL in water |
| Appearance: | White crystalline solid |
| Hazard Symbols: |
 Xn,  N,  T
|
| Risk Codes: | 22-36/37/38-51/53-63-43-23/24/25-45-20/21/22 |
| Safety: | 26-37/39-61-36/37-24/25-23-53-36 |
| Transport Information: | UN 3077 9/PG 3 |
| PSA: | 0.00000 |
| LogP: | 3.14820 |
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2-Methylnaphthalene
Chemistry
Molecular formula: C11H10
Molar mass: 142.2
EINECS: 202-078-3
Melting point: 34-36 °C
Boiling point: 241-242 °C
Flash point: 208 °F
FreezingPoint: 34.5 °C
density: 1.01
refractive index: 1.6019
storage temp.: 2-8°C
Water Solubility: 0.00246 g/100 mL
The Structure of 2-METHYLNAPHTHALENE(91-57-6):
Molar mass: 142.2
EINECS: 202-078-3
Melting point: 34-36 °C
Boiling point: 241-242 °C
Flash point: 208 °F
FreezingPoint: 34.5 °C
density: 1.01
refractive index: 1.6019
storage temp.: 2-8°C
Water Solubility: 0.00246 g/100 mL
The Structure of 2-METHYLNAPHTHALENE(91-57-6):
Uses
2-METHYLNAPHTHALENE(91-57-6) is the raw material for production of vitamin K3, it is also used for production of oral contraceptives, and synthesis of plant growth inhibitors.
2-METHYLNAPHTHALENE(91-57-6) is also used as surfactants, water-reducer, dispersant, etc.
2-METHYLNAPHTHALENE(91-57-6) is also used as surfactants, water-reducer, dispersant, etc.
Toxicity Data With Reference
| 1. | cyt-hmn:lym 4 mmol/L | MUREAV Mutation Research. 208 (1988),155. | ||
| 2. | sce-hmn:lym 250 µmol/L | MUREAV Mutation Research. 208 (1988),155. | ||
| 3. | orl-rat LD50:1630 mg/kg | 85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,85. | ||
| 4. | ipr-mus LDLo:1000 mg/kg | TXAPA9 Toxicology and Applied Pharmacology. 61 (1981),185. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Moderately toxic by ingestion and intraperitoneal routes. Human mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes. See also METHYLNAPHTHALENE; 1-METHYLNAPHTHALENE.
Hazard Codes:
Xn,
N,
T
Risk Statements: 22-36/37/38-51/53-63-43-23/24/25-45-20/21/22
22: Harmful if swallowed
36/37/38: Irritating to eyes, respiratory system and skin
51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
63: Possible risk of harm to the unborn child
43: May cause sensitization by skin contact
23/24/25: Toxic by inhalation, in contact with skin and if swallowed
45: May cause cancer
20/21/22: Harmful by inhalation, in contact with skin and if swallowed
Safety Statements: 26-37/39-61-36/37-24/25-23-53-36
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
37/39: Wear suitable gloves and eye/face protection
61: Avoid release to the environment. Refer to special instructions safety data sheet
36/37: Wear suitable protective clothing and gloves
24/25: Avoid contact with skin and eyes
23: Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer)
53: Avoid exposure - obtain special instruction before use
36: Wear suitable protective clothing
RIDADR: UN 3077 9/PG 3
WGK Germany: 2
RTECS: QJ9635000
HazardClass: 9
PackingGroup: III
HS Code: 29029080
Hazard Codes:
Xn,N,T Risk Statements: 22-36/37/38-51/53-63-43-23/24/25-45-20/21/22
22: Harmful if swallowed
36/37/38: Irritating to eyes, respiratory system and skin
51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
63: Possible risk of harm to the unborn child
43: May cause sensitization by skin contact
23/24/25: Toxic by inhalation, in contact with skin and if swallowed
45: May cause cancer
20/21/22: Harmful by inhalation, in contact with skin and if swallowed
Safety Statements: 26-37/39-61-36/37-24/25-23-53-36
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
37/39: Wear suitable gloves and eye/face protection
61: Avoid release to the environment. Refer to special instructions safety data sheet
36/37: Wear suitable protective clothing and gloves
24/25: Avoid contact with skin and eyes
23: Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer)
53: Avoid exposure - obtain special instruction before use
36: Wear suitable protective clothing
RIDADR: UN 3077 9/PG 3
WGK Germany: 2
RTECS: QJ9635000
HazardClass: 9
PackingGroup: III
HS Code: 29029080